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//------------------------------------------------------------------------------
// <copyright file="SupportsEventValidation.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
*/
namespace System.Web.UI {
using System;
using System.Collections;
using System.ComponentModel;
using System.Diagnostics;
/// <devdoc>
/// <para></para>
/// </devdoc>
[AttributeUsage(AttributeTargets.Class, AllowMultiple=false)]
public sealed class SupportsEventValidationAttribute : Attribute {
private static Hashtable _typesSupportsEventValidation;
static SupportsEventValidationAttribute() {
// Create a synchronized wrapper
_typesSupportsEventValidation = Hashtable.Synchronized(new Hashtable());
}
public SupportsEventValidationAttribute() {
}
internal static bool SupportsEventValidation(Type type) {
object result = _typesSupportsEventValidation[type];
if (result != null) {
return (bool)result;
}
// Check the attributes on the type to see if it supports SupportsEventValidationAttribute
// Note that this attribute does not inherit from the base class, since derived classes may
// not be able to validate properly.
object[] attribs = type.GetCustomAttributes(typeof(SupportsEventValidationAttribute), false /* inherits */);
bool supportsEventValidation = ((attribs != null) && (attribs.Length > 0));
_typesSupportsEventValidation[type] = supportsEventValidation;
return supportsEventValidation;
}
}
}
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